Automatic scale



March 16 1,577,395 H. 5. .WELCH. JR

AUTOMATIC SCALE Filed Sept. 28, 1925 5 Sheets-Shoot 1 HIHIHH I gwwmlr ozI H 5. Wick/.7)!

March 16,1926. 1,517,395

I H. S LCH, JR I March 16 1926.

3 Sheets-Shoot s H.'S. WELCH, JR

AUTOMATIC SCALE Filed Sept. 28, 1925 IIH VHUII: :Illllllll ll \l \lMllllllllllllllllIllllllllllllllll.

I llllll lllllllli 3Q Bezit' known thatI, ARVEYQS.-WELGH,

Jr, a 'oitizen of thefUnited States, residing -,at. .-'Charleston,*inthe 'co-nntyof Charleston isa specifications certain new, and usefulilmproveinents in rA-utzomatic' Soales of which-the fol1owingparticnlanlyto .antomatic scales. e H A -T i laisea e e,

,;.on 1 the, beam automatically indicates a and itotals the .amauntweighed.., 7 t. j A further object is to 'prow i'de and State 1 ofSonth. Carolina; havev viinvrentegil 'lghiseinnention, relates to scalesand more if the. inyention is 'to provide ioh' moyement of the weightect i d t n g; from the indieatingymechanism .at any tim a I"? H if a I'A further,:- obj-eot'-oftherinyention is to provide .-a; .eonstrnctionin which a rack 18 andthe total zil gm jehanism .beingaetnated,by-movement of the weight one direction arranged on' the scaleJeeamtoactnate the gears of the ,Tindicatiiig and tota1iz ing gearZEtrains'. ,30

. th s ShOWing, V 7" dyad-gum 'i vz l nteieyatlon";0f the scale 3":loeamand: associatedi a d I 111 the aeeontpanyiiig I have shown oneembodiment of themirention. In

V :the shaftiofzthe indicating and totalswish line "3%3 wert ica-lsectional view on line 4-4 ofgFig-nret3,,j-

as, a detaf-lseetional View through sizinglmech-amismg;

; Figure (7 is atvertio aliseotional view on line ifl-fliofflfiigme e.Eigni'e 8 {is a 'similar-rview'on 1ine8- 8iof,

Figure P10 is a'horizontal sectional ,vi

, 1- o ali ing-gear tr ims and a Y I is an enlarged mew of the switchidpp lieationifiled aieptember' is a rsinflar View .on line -9- 9l Iplurahty'of shafts26 arranged ad a'cent the lemon-Ame scam;

as, 1,925. seri im s egi-se, f

' yl' n'eans for. which the mechan sm is automatioally controlled. 1 W

eferring to the draw-ings v tenses TEN 1 onnitiins'ron, some CAROLINA.

4 the reference "numeral ;1 designates a Scale beam which esproindedwith knife edges 2 by meansof a a 7 which it is adapted tojbe supportedandcon 'ne oted'to the-scale platform (not-shown) by:

umeans of suitable levers (not shown) in the ordinary manner. theiinnerend of the beam I provide an arm 3 adapted to' support a horizontal.shelf or bracket 4:. A motor 5 is arranged thereon and a pinion alleloto'rthe body portion and astub shaft 9 is journaled between these twomembers. This mounted .on 'a shaft 13. As shown, the shaft v13isjournaled in the arm 3 and the ion-t er end of the shaftris' mountedin' a ,A weight16ismonntedon the scale beam and is adapted to be movedalongthe beam nnt'ilvbalances the weight on the platform .inthe nsnal"manner. Asshown the upper facelof the beam is providedfwith a rack andadjacent each corner the weight is provided with a roller l8 Ladapitedtoridee I ,uonrthebeam Therwe'ightembraces-the beam; Eigune 32 isaa,vertical sectional .View on threaded "portion of theishaft 13. Withinthe weight I provide a main shaft "'20 and Y 'I. provide a pawl '24adapted to'fhe held in operative position by means of a spring 25 e andadapted to lock the main gear to the shaft when the gear is nevolyed ina clockwise direction.

The indicating. mechanism consists of a indicate the positionof the-weight on the no 'LGismOnntedOn the motor shaft 7., The upper end ofthe arm ,3jis provided witha depending portion 8 arranged substantiallypar-i hearingjicarried ,by an arm 15L depending I i from the outer endof the beam. .Interme- F l diate its endsihtis shaft is threaded as at15.

as shown in Figures 41, and 7 to 9 "inclusive 1 9 i and beneath'therheamit is provided with a pair of-idepending portions l9'ha'ving thread- 7ed openings :therein fort-lie reception of the V beam, and thus theamounttot material on the Scale p QimQ in the' fusuala manner. As shown,each shaft is provid d th; a

gear 29, one-ofwhich meshes withlthef'main a gear 21 andieachjshaft isprovided withs a pinion bymeans of which the shaft to the left isdriven. The .ratio 'b'etwe'en "the gears, 29'and the -"joinions 3 0 issuch that each shaft Will make 'ten rev0lutions' to one irevolution ofLt/he next adjacent shaft tQ properly transfer the amounts "indicatedfrom units intotens and thence into hunjdreds in the usual manner. v a115;; As the totalizing mech :nism: is adapted to function o ly whe theveishtv'moves Wardly on thebeamill'provide an auxiliary 1 gear '31vvhich is mounted on the main shaft and 'keyed thereto. as at 32 (seeFigi1re;. 6j). I turther provide a ratchet 33 on'the main shaftimountedadjacent one sidefo f "the weight and keyedfto. the shaft as at 34.

xi-This ratchet is" adapted, to be engaged by I Flax-pawl 35 carriedbythe gear, casing and I-isppposed to'the action of ithe ratchet 22 5Lheretofore described;

o v Any suitable type of elec'tric may current "and the wires 37. areconnected to a "the motor. .Iiu'rther -provide upper con- ';.acts '38and lower contacts 39 adapted ,to Lbe bridged by :a movableico'ntact.member I l-Ocarried;bythebeam; V This movablegcontact'member issupported byf an ;arin l1. of; suitable insulating material.

devicelis as follows The operation of the fWhcnih lW igb s nb'al 'n "onbeam thefbea m movescither upwardly pr 7 1 1 downwardly to close"'actua-teithe mo 5 The; motor; is 5.- of a jjreversible typeandis'adapted toirevolvethe lshaftin either directi-oni. Revolution. ofthe shaft causeslthemain'gear21 to be revolved V fbythje'rack fzjana anymovement of this 'gear is transmitted to. the indicating mech- 'with:Thus, any movement of the weight 7 anism through theigearf29 meshingthereon the beam ineit'her directionlwill be trans-e f fmitted totheind-icatin'g mechanism andithe: indicating mechanism will at alltim'es tell the Weight of thematerial on; the scale platf-form, lVhentheg'ear 21 revolves in a clockjwisedirecti on due to the weightmovingout I :Wardly' on the scale beam, the pawl 24; drives ':theratchet Wheel 22 which isrkeyed to the main shaft causing'the.mainhshaft2O to; revolve and thus 'f-r'evolving the giear' i3la -.Thisogear meshes with a" gear 42 mounted I on the adjacentsha'ft43' ofthetotalizing v mechanisml As shown, the totalizingmecln anismis mounted ona pluralityof"shafts .43 arranged beneath the indicating mechanism givethe proper ratio for transfer.

vmovement of the weightpoutwardly ,on the {then registering onmth'e ftotaliz'ing mech afnism; Then the 'iveight moves inwardly on the beamthe main gear 21 s -revol;ve d "1n "The ratchet 33jand the pawl'35,'whicliare] lockthe sha'ft'20 when the weight is" moving in steamplantsyin loading'bulk cargoes in invention iherewith shown and"-described is? 'to be taken as a preferredexample of'the" size; andarrangementiof parts may "be 're- 'ofthe invention 01 one set ofcontacts and bysaid weightand adapted tob'e actuated byjfj and-atotalizing gear train carried by the weight and adapted'to be actuatedmove and thesefshaits extend through openings, l l'in the fr ontof thecasinggandxai e pro- Videdi with disks- 45 having suitable indiciathereon for recording the tota1s weigh-edt v Each'shaftgispr0vided-witlr aagear 42- and I. is' further provided With afpinion 46mcslr ing-with the gear of the adjacent shaft'to 'VVhen thegear 31revolves due to the beam. the total'is thustddcd to the totalafco'unterL clockwise direction and the pawn '2trides over the'ratchetfl22. The main shaft 20 is thus. not actuated-and theto'tal- 7ing mechanism is not moved. i

opposed to the ratchet-22fand the pawl 24" inwardlyiof the scale beam toprevent the totalizing mechanism from j-turning,j thus eliminating.anypossibility oftheftotalizmg I mechanism Qbeing actuated in a reverse direction to; "change. the figures of the 5 totals weighedi If? T f;

,- The-scale is adapted for nsein various.

lwaysfand may-be employe dlin connection with weigh-larries supplyingcoal to boile ships and at coal, mines to' checkjthe amount of'coal sentout. 7 .i It is to be understood that the form of my same and thatvarious changes in theshape,

sorted to without departing from the "spirit t e are f. hebjoined'claimsi' .I claim: g. v 1 i '1. Infia device of the2'eharacterdescribed, a beam, a weightautomati'cally movable 011; said beam; anindicating; gear traificarried"? movement of the weight in eitherdirection;

ment thereof in one direction.

' 2. a In a device oztthe character described [a pivoted beam, .a weightmovably mounted on said beam; a, switch'adaptedto be closed S when thebeam is unbalanced, afmotor con y trolled'by said switch, a threadedshaft coni' I 1' nected to said motor and engaging said weightto move iton said beam, 'an indi: eating gear train carried by said Weighta'nd l vadapted to be actuated by movement ofsaid. weight in either direction;and; a totalizing 5 gear train adapted to be actuated by' mov'ementofthe weight in one directione i V 3. In a dex' iee of'tlie characterdescribed a beam, a Weight m'ovably,mounted on sai V beam, a rackcarried by said beam,fa mai j shaft mounted in said weight an indicatinggear train mounted n said Weight, a" gear i hloosely 'm'ounted onsaidimain shaft and meshing ith said rackand saidindicating gear-train, meansfor locking said'gear to said sha-tt When}; .-tl1e gear revolvesfin onedirection, and ga totalizing gear'train connected to said shaft-andadapted to be actuated thereby; i 1

.gyfln a devlce of the character described,

7, illfbetllh, aweightfmovably mounted 011 said bea ga rackcarried bysaid beam, a main shkl'v t n'iounted in said Weight, a gear loosely"mounted on said shaft and meshing with ysaidirack, indicating mechanismcarried by Y fisaidweight and operatively connected to said gear to beactuated thereby, a ratchet Wheel keyed to said shaft; apawl-carried bysaid gear and adapted to engage-said ratchet wheel to lock said gear tosaid; shaft When the gear revolves in one direction, and total- 'iz-ingmechanism operatively connected to said shaft to be actuated thereby. v5. A device constructed in accordancegwith' claim 3 wherein means areprovided for locking said shaft against revolution in a a "HARVEY SIMONSWELCH, r.

